<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <view class="goods-item">
          <!-- 商品左侧图片区域 -->
          <view class="goods-item-left">
            <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
          </view>
          <!-- 商品右侧信息区域 -->
          <view class="goods-item-right">
            <!-- 商品标题 -->
            <view class="goods-name">{{goods.goods_name}}</view>
            <!-- 管道运算符，前面的结果是后面 的参数 -->
            <view class="goods-info-box">
              <!-- 商品价格 -->
              <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
            </view>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
          query: '',
          cid: '',
          pageNum: 1,
          pageSize: 10
        },
        goodsList: [],
        total: 0,
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
        isloading: false
      }
    },
    filters:{
      tofixed(num){
        return Number(num).toFixed(2)
      }
    },
    onLoad(options) {
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      this.getGoodsList()
    },
    methods: {
      async getGoodsList(cb) {
        this.isloading=true
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        this.isloading=false
        cb && cb()
        // console.log(res)
        if (res.meta.status != 200) return uni.$showMsg()
        this.goodsList =[...this.goodsList,...res.message.goods] 
        this.total = res.message.total
      },
      onReachBottom(){
        if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
        if(this.isloading) return
        this.queryObj.pageNum+=1
        this.getGoodsList()
      },
      onPullDownRefresh(){
        this.queryObj.pageNum=1,
        this.total=0
        this.isloading=false
        this.goodsList=[]
        // 下面这两种写法应该是一样的吧，我觉得
        // this.getGoodsList(uni.stopPullDownRefresh())
        this.getGoodsList(() => uni.stopPullDownRefresh())
      },
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      }
    }
  }
</script>

<style>
  .goods-item {
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;
  }

  .goods-item-left {
    margin-right: 5px;
    display: flex;
      justify-content: space-between;
      align-items: center;
  }

  .goods-pic {
    width: 100px;
    height: 100px;
    display: block;
  }

  .goods-item-right {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .goods-name {
    font-size: 13px;
  }

  .goods-price {
    font-size: 16px;
    color: #c00000;
  }
</style>
